/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import accessor.OrderAccessor;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author QUYET
 */
@WebServlet(name = "order_update", urlPatterns = {"/order_update"})
public class order_update extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        OrderAccessor accessor = new OrderAccessor();
        try {
            int orderId = request.getParameter("order_id")!=null?Integer.parseInt(request.getParameter("order_id")):0;
            int orderStatus = request.getParameter("status_id")!=null?Integer.parseInt(request.getParameter("status_id")):0;
            int originalStatus = accessor.getStatus(orderId);
            System.out.println(orderId);
            System.out.println(originalStatus);
            if(originalStatus<orderStatus){
                if(accessor.updateStatus(orderId, orderStatus)>0){
                    out.print(1);
                } else{
                    out.print("Error! Can not update");
                }
            } else{
                out.print("Can not update to earlier status");
            }
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
